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Segment Information - Revenue from External Customers (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Revenue from External Customer [Line Items] |  |
Total revenue | $ 153,486 | $ 277,437
Adjusted EBITDA | 31,669 | 100,290
Operating segments | International Services |  |
Revenue from External Customer [Line Items] |  |
Total revenue | 83,063 | 124,201
Adjusted EBITDA | 31,379 | 52,285
Operating segments | U.S. Services |  |
Revenue from External Customer [Line Items] |  |
Total revenue | 48,779 | 109,286
Adjusted EBITDA | 715 | 44,893
Operating segments | Tubular Sales |  |
Revenue from External Customer [Line Items] |  |
Total revenue | 21,644 | 43,950
Adjusted EBITDA | (446) | 3,119
Inter-segment |  |
Revenue from External Customer [Line Items] |  |
Total revenue | 0 | 0
Inter-segment | International Services |  |
Revenue from External Customer [Line Items] |  |
Total revenue | 17 | 377
Inter-segment | U.S. Services |  |
Revenue from External Customer [Line Items] |  |
Total revenue | 4,110 | 7,914
Inter-segment | Tubular Sales |  |
Revenue from External Customer [Line Items] |  |
Total revenue | 5,665 | 11,891
Inter-segment | Corporate and other |  |
Revenue from External Customer [Line Items] |  |
Total revenue | (9,792) | (20,182)
Corporate, non-segment | Corporate and other |  |
Revenue from External Customer [Line Items] |  |
Total revenue | 0 | 0
Adjusted EBITDA | $ 21 | $ (7)

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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